package org.ly.uap.client.authentication;

import java.security.Principal;
import java.security.acl.Group;
import java.util.Collections;
import java.util.Enumeration;
import java.util.HashSet;
import java.util.Set;

public final class SimpleGroup extends SimplePrincipal
        implements Group {
    private static final long serialVersionUID = 4382154818494550205L;
    private final Set<Principal> members = new HashSet();

    public SimpleGroup(String name) {
        super(name);
    }

    public boolean addMember(Principal user) {
        return this.members.add(user);
    }

    public boolean isMember(Principal member) {
        return this.members.contains(member);
    }

    public Enumeration<? extends Principal> members() {
        return Collections.enumeration(this.members);
    }

    public boolean removeMember(Principal user) {
        return this.members.remove(user);
    }

    public String toString() {
        return super.toString() + ": " + this.members.toString();
    }
}
